2017/03/05 by Sergey Zhidkov, Sergey V. Zhidkov, Zhidkov, Sergey V.
Computer Science · Engineering · Mathematics · #Advanced Wireless Communication Techniques #FOS: Computer and information sciences #Information Theory (cs.IT) #PAPR reduction in OFDM #Power Line Communications and Noise #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.1703.01562
arxiv created 2017/03/05 · openalex publication_date 2017/03/05 · arxiv updated 2017/03/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper, we propose a practical receiver for multicarrier signals subjected to a strong memoryless nonlinearity. The receiver design is based on a generalized approximate message passing (GAMP) framework, and this allows real-time algorithm implementation in software or hardware with moderate complexity. We demonstrate that the proposed receiver can provide more than a 2dB gain compared with an ideal uncoded linear OFDM transmission at a BER range 10-4÷10-6 in the AWGN channel, when the OFDM signal is subjected to clipping nonlinearity and the crest-factor of the clipped waveform is only 1.9dB. Simulation results also demonstrate that the proposed receiver provides significant performance gain in frequency-selective multipath channels